GSM Unlocked Mobile Phones are Unlocked GSM Phones which can be used with Any
GSM Wireless Network Anywhere in the World.

The Term Unlocked
is meant for Cellular Phones which have not been subsidized
and Locked by any Wireless Services Provider, therefore, unlocked phones
can work with any GSM Wireless Service anywhere in the World.

GSM is
a Wireless Platform and the technology that carries the signal back and
forth from the phone to the receiver (Receiving Towers).

Unlocked GSM Phones
will only work on GSM Platform that means that your Wireless Service Provider
has to be a GSM Service Provider. In the USA, T-Mobile, Cingular GSM and
AT&T Digital GSM are the popular companies that use GSM Technology
to provide Wireless Services to their end users.

SIM Card,
also called the Smart Card is a small chip that contains your wireless
service account information. You can insert the SIM Card into any unlocked
GSM phone and instantly transfer your phone number and account to the new
phone. If the Phone is locked, it may not accept your SIM Card.

Tri Band
is a Term used for Phones that will work with 900/1800/1900 MHz
Frequencies.

The Popular
Frequency in USA is 1900 MHz.

In Europe,
Australia, Asia and Africa,
the popular frequencies range between 900-1800 MHz.

South America
and the Caribbean's
have a mix of 1900 along with 900/1800 MHz.

A Good source
to check for what frequency Maps in a certain region is the web site
by GSM association. Click
here to see the Maps.

Please check the GSM frequencies used in your country and make sure the mobile phone's frequency band matches that used in your country.

GSM (Groupe Special Mobile) = Global System for Mobile communications - most popular standard for mobile phones in the world.

GSM World Coverage Map and GSM Country List
GSM 900 / GSM 1800 MHz are used in most parts of the world: Europe, Asia, Australia, Middle East, Africa.
GSM 850 / GSM 1900 MHz are used in the United States, Canada, Mexico and most countries of S. America.

Most mobile phones sold on our web site have the following common features:

Dual SIM

Camera

Internal Flash Card

Bluetooth

FM Radio

Base booster

Marquee lights

When trying to select a phone model make sure it supports the GSM frequency bands used in your country. You can refer to this GSM frequency map for the frequency bands used in your country.

As a general guide for choosing the frequency bands, the following shows a briefe guideline:

Dual band: Can be used in Europe, Asia, Africa and Brazil, Venezuela, Colombia

Tri band: Can be used in USA, Canada, Europe, Asia, Africa and Latin Americas

Quad band: Can be used in almost all the countries in the world except Japan and South Karea

For example, if you want to buy a cell phone for use in USA, you will need a Tri-band or Quad-band cell phone.

The next feature of the phone you want to consider is the "Dual SIM dual standby" (see explaination bellow). Most brand named phones made by Nokia, Motorola, Samsung, DO NOT support this feature. If you are interested in high end mobile phones, you may want to look into these features:

Microsoft Windows CE based

WiFi

GPS

These models of phones normally don't support "Dual SIM".

The 3rd thing you want to consider is the external shape of the phone. We offer the following types of phone shapes and operation modes:

iPhone like touch screen

Slide Open Design

Fold over Design

Streight

Dual SIM
is a Term used for Phones that has two SIM sockets and allow the phone to work with both SIMs so a single phone will have two phone numbers.

Single Standby
is a Term used for Phones that supports multiple SIM sockets and allow the phone to work with one SIM at a time and user can select which SIM to be active and switch to the selected SIM so making and answering calls can be done for the active SIM.

Dual Standby
is a Term used for Phones that supports multiple SIM sockets and allow the phone to work with both SIMs at the same time. Both SIMs are active to receive and make calls. No need to manually switch between SIMS. But you can only make and receive call from one SIM at a time. For example, when there is a incoming call for one of the SIMs and you pick up the call, you will not be able to make or receive calls for the second SIM until the call activities are stopped for the first SIM. In other words, call making and answering is not duplex.

Dual Receiving
is a Term used for Phones that supports multiple SIM sockets and allow the phone to work with both SIMs at the same time. Both SIMs are active to receive and make calls. No need to manually switch between SIMS. You can only make and receive call from both SIM at the same time. For example, when there is a incoming call for one of the SIMs and you pick up the call, you will be able to make or receive calls for the second SIM. Call receiving and answering is fully duplex.